We could supply industrial grade 99.99% purity argon Ar gas, welding argon gas of purity 99.9%, 99.99% and 99. ... 999% Industrial grade welding argon Ar gas, 99.99% purity argon gas/industrial gas ... /welding gasMain market:Africa,Middle-East,South Asia,Oceania ect. Purity: 99.9% ,99.999%, 99.999 Working pressure: 150 barArgon (Ar ...